baber/WOPTO huggingface dataset:
Patent CA-2096006-A1 (CA)
Title: Intraretinal delivery and withdrawal instruments
Inventor: DEL CERRO MANUEL
IPC: A61M5/158
Filed: 1991-11-13
Abstract: An intraretinal delivery and withdrawal instrument and methods for entering the eye directly without a surgical incision as a prerequisite. The instrument has (a) a handle (10) and a curved, distal frame (12) extending therefrom, for insertion into an orbit along the periphery of the eye (18) in a direction so as to reach the posterior of the eye; (b) a tip (14) connected to the frame for penetration into the subretinal region of the eye; and (c) an adjustable collar (24) connected to the tip whereby the collar is capable of being positioned so that the collar regulates the depth of tip penetration into the subretinal region.
Patent CA-2096111-A1 (CA)
Inventor: BABU GADDAM N
IPC: C08F290/00
Filed: 1991-11-14
Abstract: Nouvelle classe de monomères macromoléculaires (appelés ici "macromonomères"), renfermant le produit polymérisé d'au moins un vinylarène et d'un monomère diénique conjugué; le produit possède un groupe terminal oméga-alcényle d'au moins quatre atomes de carbone. Le nouveau macromonomère peut être polymérisé avec des monomères d'éthylène et d'alpha-oléfine pour former des copolymères de greffe renfermant des chaînes latérales ramifiées, utiles comme compositions de revêtement et de moulage, notamment comme revêtements sur des supports chromatographiques aux fins de l'analyse et du fractionnement préalable de mélanges chimiques.
Patent CA-2096782-A1 (CA)
Title: Process for preparing ultra-high molecular weight polyethylene
Inventor: SHIRAISHI TAKEICHI
IPC: C08F4/658
Filed: 1993-05-21
Abstract: ABSTRACT According to the present invention there is provided a process for preparing an ultra-high molecular weight polyethylene superior in fluidity, having a high bulk density, a small average particle diameter and a narrow particle size distribution and substantially free from formation of coarse particles.      In a process for preparing an ultra-high molecular weight polyethylene, using a catalyst comprising a solid catalyst component and an organometallic compound, there is used as the said solid catalyst component a material obtained by contacting the following components [A] and [B] with each other:   [A]  a reaction product resulting from the reaction of a magnesium halide and a compound of the general formula Ti(OR1)4 where R1 is a hydrocarbon residue having 1 to 20 carbon atoms; and [B]  a reaction product resulting from the reaction of an aluminum halide and a compound of the general formula R2OR3 where R2 and R3, which may be the same or different, are each a hydrocarbon group having 1 to 20 carbon atoms.
Patent CA-2099012-A1 (CA)
Title: Well cleanout using caustic alkyl polyglycoside compositions
Inventor: CHAN ALBERT F
IPC: E21B37/00
Filed: 1992-01-23
Abstract: Oil and gas wells and injection wells are cleaned of oil-based drilling muds, pipe thread compounds, other oil contaminants, cement and contaminants in injection water by a composition comprising fresh water or seawater, one-half to ten percent concentration of an alkyl polyglycoside surfactant and one to ten percent of a caustic agent such as sodium hydroxide, potassium hydroxide or ammonium hydroxide.
Patent CA-2101553-A1 (CA)
Title: Device for spraying a fluid by means of a pump that is actuated repeatedly
Inventor: PRIVAS YVES
IPC: B05B11/00
Filed: 1992-01-22
Abstract: A B S T R A C T      A device for spraying or dispensing a fluid, the device comprising: a single-acting pump having a capacity of less than 500 µl and provided with piston means actuated by a hollow push rod allowing fluid to flow therealong, said piston means sliding in a pump chamber that normally contains fluid to be sprayed or dispensed, to enable said fluid to be expelled; a pusher mounted on said push rod of the pump and communicating with said push rod to enable the fluid to escape; and rapid repetition actuator means having a moving portion for actuating the push rod repetitively; wherein the pusher is connected to said moving portion of the actuator means by a connection that does not leave play in the axial direction of the push rod.
Patent CA-2106811-A1 (CA)
Title: Duct sealing apparatus and ducting system
Inventor: BINZER LOTHAR
IPC: F23J11/12
Filed: 1993-09-23
Abstract: ABSTRACT OF THE DISCLOSURE Apparatus for sealing a duct comprises an enclosed body having inlet and outlet passages communicating with the duct.  A duct sealing member is located within the enclosed body and is movable between an open position to permit flow through the enclosed body and a closed position to block one of the passages of the enclosed body to prevent flow through the body.  An actuating system is provided for moving the duct sealing member from the open position to the closed position.  A sensing system for detecting a pre-determined condition such as excessive heat is provided to activate the actuating system and seal the duct.  Also disclosed is a ducting system that incorporates the sealing apparatus and permits ventilation of heating appliances in apartment dwellings and the like in a significantly reduced area leading to material cost savings.
Patent CA-2110047-A1 (CA)
Title: Herbicides with a cyclic hexapeptide as an active ingredient
Inventor: OHRA JUNKO
IPC: C07K7/64
Filed: 1993-03-30
Abstract: A herbicide containing an active ingredient comprising a compound, represented by general formula (I), derived from a substance produced by a microorganism, wherein X1 and X2 may be the same or different from each other and each represents hydrogen, methyl or hydroxymethyl; R represents methyl, hydroxymethyl or -CH=C(CH3)CH2R'; and R1 represents carboxy, hydroxymethyl or acetoxymethyl. It has a potent herbicidal effect against a wide variety of plants including broad-leaved and gramineous weeds.
Patent CA-2110200-A1 (CA)
Title: Amine-thiol chain transfer agents
Inventor: MCCALLUM THOMAS F III
IPC: C08F28/02
Filed: 1993-11-29
Abstract: ABSTRACT OF THE DISCLOSURE       Polymers havingg amine sulfide terminal moieties are provided. The amine sulfide terminal moieties are imparted by using amine-thiols as chain transfer agents in aqueous addition polymerizations.       The polymers are useful as mineral dispersants, as water-treatment additives for boiler waters, cooling towers, reverse osmosis applications, sugar refining, paper production, geothermal processes and oil wells, and as detergent additives acting as builders, anti-filming agents, dispersants, sequestering agents and encrustation inhibitors.
Patent CA-2110527-A1 (CA)
Title: Treatment process for bone tissues and corresponding implantable biomaterials
Inventor: FAGES JACQUES
IPC: A61L2/00
Filed: 1993-12-02
Abstract: The present invention relates to a method for treating bone tissues of animal or human origin, and a corresponding implantable biomaterial. According to the present invention, a fluid in the supercritical state is made to penetrate throughout the bone tissue. The bone tissue thus treated may then undergo stages of extraction of specific proteins. This tissue is ready to be fitted on a damaged bone tissue and has mechanical properties at least equivalent to those of natural bone. <IMAGE>
Patent CA-2112020-A1 (CA)
Title: Adaptive Equalizer
Inventor: OKANOUE KAZUHIRO
IPC: H04L1/20
Filed: 1993-12-21
Abstract: The adaptive equalizer of the present invention estimates a channel impulse response vector h in a channel impulse response estimator, outputs a result to a channel impulse response convertor. The a channel impulse response convertor removes interference components from the channel impulse response vector h, outputs a channel impulse response vector h' to an equalizer. The equalizer sets up, based on the channel impulse response vector h', internal parameters, and equalizes, based on the internal parameters, reception signals.     By configuring as above, a distortion by intersymbol interference and a deterioration of reception performance by Co-channel interference waves can be prevented.     :
Patent CA-2112972-A1 (CA)
Title: Improved allocation of paging capacity in cellular applications
Inventor: SANMUGAM K RAJ
IPC: H04W68/00
Filed: 1993-04-26
Abstract: A method of and system for paging mobile stations within a cellular telecommunication system wherein the allocation of control channel paging capacity is optimized.        Each page request for a mobile station received by the system is classified into a predesignated group based upon the characteristics of the request, such as the degree of certainty with which the location of the mobile is known and the origin of the page request. In accordance with the predesignated group to which the page request is assigned, each page request is assigned a paging extent designation to be associated with one or more page attempts and representing the geographic area within the system to which each page attempt is to be broadcast. A paging priority is then assigned to each page attempt based upon the previously assigned group characteristics and paging patterns. Each page attempt is executed within the system according to its designated priority.
Patent CA-2113051-A1 (CA)
Title: Conveyor system for chilling food products
Inventor: JOHNSON DAVID A
IPC: F25D13/06
Filed: 1994-01-07
Abstract: Food product chilling apparatus is afforded herein comprising an elongated water tank and a modular movable belt conveyer unit that carries warm food products through water for chilling. A superstructure and hoist system lifts the conveyor unit out of the water for servicing. Cooling water is recirculated and rechilled in a cooling method that controls the temperature of the efflux water  from  the  cooling  tank.  The  influx  chilling  water  is distributed in a plurality of parallel flow paths incrementally chilling the product at various stations along the conveyor belt path to reduce the average cooling time for the processed products.          By standardizing the efflux water temperature at the various stations at a few degrees Fahrenheit above the influx water, a thermally efficient cooling system is provided. Each of the cooling stations is provided with weir height control means to optimize the cooling rate along the length of the conveyor belt. By transverse flow of chilling water across the conveyor belt path, a turbulence is created that further accelerates cooling of the product. The apparatus and method of this invention is particularly adapted to the cooling of steam cooked food products, such as lobster and seafood, delivered directly from the cooker.
Patent CA-2113889-A1 (CA)
Inventor: FRYE FILMORE O
IPC: G08B15/00
Filed: 1994-01-20
Abstract: A security system for a vestibule and, more specifically, a security vestibule is equipped with monitoring devices to monitor the presence of an intruder.   The monitoring devices transmit signals to warning devices, such as a speaker which broadcasts an audible message as well  as a siren and a flashing light  which produce  audible  and  visual  signals,  respectively,  to  attract attention exteriorly of the vestibule.   The monitoring devices further transmit signals to deterrent devices which disturb or offend the person.  The devices are of the type which disperse foul scents, dispense dyes to mark the person, disperse water at varying temperatures, and discharge electrical shock.
Patent CA-2114505-A1 (CA)
Title: Cyclic polysulfonyldiallylammonium salts
Inventor: BAUR RUEDIGER
IPC: C08G75/22
Filed: 1994-01-28
Abstract: Abstract Cyclic polysulfonyldiallylammonium salts Cyclic  polysulfonyldiallylammonium  salts  which  are obtainable by a)  copolymerization of salts, preferably halides, of monomeric diallylammonium components of the formula (I)   ( I ) with sulfur dioxide or a compound which liberates sulfur dioxide, and b)   anion exchange, the anions, preferably the halide ions,  of the  diallylammonium  components  being completely or partially replaced by the anions A, the  diallylammonium  components  being  in  each  case cyclized to give a five- or six-membered ring and being connected to one another by one or more divalent radicals -SO2- to form polymers, the polysulfonyldiallylammonium salts  having a molecular weight of between 500  and 5,000,000, and the ratio of the number of diallylammonium components to the number of divalent SO2 radicals being from 1:0.01 to 1:100, and A    is in each case the stoichiometric anion equivalent of an inorganic anion; of an anion of a heteropoly-acid or of a borate of the formula (II) or of an organic anion, or a disulfopyrrolidinium betaine of the formula (III) or A is a combination of the abovementioned anions; are employed individually or in combination as charge control agents in electrophotographic toners and developers which are employed for copying and reproducing originals and for printing electronically, magnetically or optically stored information or in colorproofing,  and as charge control agents in powders and powder coatings.
Patent CA-2114996-A1 (CA)
Inventor: GOTTHELF JEFFREY B
IPC: B60K15/03
Filed: 1994-02-04
Abstract: The valving element is positively tied to the diaphragm, through a diaphragm-carried insert which has a flow-accommodating groove formed therein to facilitate instant outlet pressure following a gas supply shut off. Too, the valving element cooperates with internal structures to define spaced apart seating and sealing areas which boundary between high and low pressures of the natural gas, and the magnitudes and directions of the differential pressures are balanced at the seating and sealing areas, and maintained in balance regardless of how inlet and outlet gas pressures vary.
Patent CA-2115574-A1 (CA)
Title: Epithesis and device for reversible attachment thereof to a bone
Inventor: HORLITZ SIEGLINDE
IPC: A61L27/00
Filed: 1992-07-24
Abstract: Proposed is a method for the reversible attachment of an epithesis (20) to a bone (36), the method calling for hollow rods (38) with internal threads (40) to be implanted in the bone (36) and for bolts (24) designed to attach the epithesis (20) to be reversibly inserted in the rods (38). The bolts (24) have heads (26) which are waisted, and there are matching recesses (22) in the silicone-rubber material of the epithesis (20) into which the bolt heads (26) snap in the same way as pop buttons.
Patent CA-2116376-A1 (CA)
Title: Disc changing system
Inventor: ECHIGO TOSHIYUKI
IPC: G11B27/00
Filed: 1994-02-24
Abstract: DISC CHANGING SYSTEM            ABSTRACT OF THE DISCLOSURE A disc playing apparatus includes a disc magazine for storing a plurality of discs, a changer unit for removing and returning a disc to the disc magazine, a player unit for playing the disc removed from the disc magazine by the changer unit, and a controller for controlling the changer unit. The control unit stores and updates management information regarding the position of each disc in the disc magazine and the number of times that each disc is requested to be played. According to the management information, the rearrangement of the discs in the disc magazine is executed.
Patent CA-2117178-A1 (CA)
Title: Coating compound, a process for its preparation and its use for the production of coatings
Inventor: DHEIN ROLF
IPC: C08G18/42
Filed: 1992-08-28
Abstract: An aqueous two-component coating agent whose binder consists essentially of a combination of a) a polyol component present dissolved and/or dispersed in water comprising a1 ) at least one water-dilutable polymerisation resin or polycondensation resin with a molecular weight Mn of over 500 possessing hydroxyl groups and a2) a reactive diluent consisting of at least one water-soluble compound with a molecular weight Mn of under 500 capable of reacting with isocyanate groups and b) a polyisocyanate component with a viscosity at 23°C of from 50 to 10 000 mPa present emulsified in the aqueous solution or dispersion, a method for producing such coating agents wherein the said polyisocyanate component is emulsified in the said aqueous solution or dispersion with the optional incorporation of auxiliary substances and additives in the system prior to adding the polyisocyanate, and the use of the coating agents for the production of air-drying and/or heat-drying coatings.
Patent CA-2118450-A1 (CA)
Title: Optical communications network synchronization device
Inventor: MASETTI FRANCESCO
IPC: H04L7/033
Filed: 1994-10-19
Abstract: This device includes a delay element applying delays to signals received in an optical form, this form being that of a carrier wave of optical nature bearing these signals. These delays are controlled in order to ensure synchronisation of these signals to reference instants. According to the invention, this delay element (2) receives the said carrier wave and applies the said controlled delays to it so as to delay these signals while leaving them in their optical form. <IMAGE>
Patent CA-2122373-A1 (CA)
Title: Method of laser photoablation of lenticular tissue for the correction of vision problems
Inventor: GWON ARLENE E
IPC: A61F9/008
Filed: 1992-08-26
Abstract: The invention relates to photoablation of ocular lens tissue with a pulsed laser beam without causing substantial damage to surrounding tissue regions.
Patent CA-2123521-A1 (CA)
Title: Safety interposer for surgical instruments
Inventor: TRANSUE DEBORAH M
IPC: A61B1/00
Filed: 1994-05-13
Abstract: Packaging for use in transportation and handling of a surgical instrument including a safety device which prevents engagement of the instrument or movement of a safety mechanism from a safety position. In a preferred embodiment the safety device is a safety interposer shaped to fit around the shaft of a trocar. The safety interposer acts as a physical barrier between the trocar and cannula of the trocar assembly and prevents the two parts from coupling which may occur from jostling during transportation or handling.
Patent CA-2125795-A1 (CA)
Title: High Solids Liquid Starch Prepared by Batch Cooking
Inventor: MALICZYSZYN WALTER
IPC: C08B30/00
Filed: 1994-06-14
Abstract: A method of preparing high solids liquid starch is provided using a modified two step batch cooking procedure.
Patent CA-2125944-A1 (CA)
Inventor: CHRETIEN DENIS
IPC: F25J3/04
Filed: 1994-06-15
Abstract: Dans ce procédé du type à pompe le débit variable de gaz sous pression est obtenu en faisant varier le débit du liquide à vaporiser dans la ligne d'échange thermique, et la pression de vaporisation du liquide.
Patent CA-2126895-A1 (CA)
Title: Method of manipulating fermentation enzyme activity
Inventor: SHELFORD JAMES A
IPC: A23K20/00
Filed: 1994-06-28
Abstract: Enzyme activity in anaerobic fermentation of animal feed is manipulated by adding to the feed at least one enzymatic control agent. More specifically, the enzymatic control agent may be a surfactant or an oxidizing agent or derivatives thereof or a combination of surfactant and oxidizing agents.
Patent CA-2127066-A1 (CA)
Title: .alpha.-amino acids derivatives, their preparation process and pharmaceutical compositions containing them
Inventor: DUFLOS MURIEL
IPC: A61P3/06
Filed: 1994-06-29
Abstract: Compounds of general formula: <IMAGE>  in which m, X, Y, A, R2 and R3 are defined in the description. Medicaments.
Patent CA-2127800-A1 (CA)
Inventor: HEIMBERG WOLFGANG DR
IPC: F02N19/00
Filed: 1993-03-04
Abstract: The invention pertains to a fuel injection device operating according to the solid-state energy storage principle, whereby a rotor element carried in a pump housing of an electromagnetically driven reciprocating pump is accelerated almost without resistance, whereby the rotor element stores kinetic energy and impacts on a piston element, so that a pressure impulse is generated in the fuelcontained in a closed pressure chamber before the piston element due to the fact that the stored kinetic energy of the rotor element is transferred via the piston element to the fuel in the pressure chamber and whereby the pressure impulse is used for the injection of fuel through a nozzle and whereby the rotorelement is carried form-locking on the piston element and the two elements are mutually spring-mounted.
Patent CA-2128238-A1 (CA)
Title: Preconsolidation process for making fluoropolymer composites
Inventor: DEAKYNE CLIFFORD K
IPC: B29K27/12
Filed: 1992-12-30
Abstract: A process for preconsolidating a planar porous fiber-thermoplastic resin layer which is unconstrained in the in-plane di-rections by heating the layer to above the melting point of the resin, then applying pressure to the plane of the layer causing resin flow, thus orienting the fibers in the plane of the layer.
Patent CA-2129680-A1 (CA)
Title: A construction for automatically milking animals
Inventor: VAN DER LELY CORNELIS
IPC: A01J5/00
Filed: 1993-11-01
Abstract: A construction for automatically milking animals, such as cows, comprises a milking box (14) with a milking robot (41) and an area (1, 28) where the animals can freely move about. The construction further includes a system of doors, gates or suchlike means (8 -12) which open in one direction to define the path and the direction of walking of the animals to the milking box (14). The milking box (14) includes two adjacently arranged milking box compartments (15, 16). In this situation, the milking robot (41) is set-up in such a manner that the head (67) of the robot (41) can enter a first compartment from one side and a second compartment from another side.
Patent CA-2131283-A1 (CA)
Inventor: KAWANABE JUNICHI
IPC: G01N35/10
Filed: 1992-12-22
Abstract: The presence of air bubbles is detected during a dispensing of samples for determining if the volume of the sample dispensed is insufficient.     The characteristic of a presence-of-bubbles curve (101) has a difference in a pressure inside a nozzle from the characteristic of a curve (100) under a normal condition in which no bubbles exist, at the time just before the dispensing of the sample is completed.      Accordingly, it is possible to determine whether or not bubbles exist by detecting the pressure inside the nozzle at the determination time (105) and comparing the detected value with an established threshold value, and it is determined that an insufficient volume of sample has been dispensed, thereby a warning is generated.
Patent CA-2132233-A1 (CA)
Inventor: OHE MASAHITO
IPC: G02F1/13
Filed: 1994-09-16
Abstract: A liquid crystal display device having electrodes that form a picture element matrix and generate an electric field substantially parallel to a substrate that has a brightness recovery time no greater than five minutes. The brightness recovery time is the time until the brightness of the displayed portion that has been displayed for 30 minutes and is turned off returns to the background brightness.
Patent CA-2133592-A1 (CA)
Title: Instant hot wash device
Inventor: BREITHAUPT HOWARD K
IPC: B60S1/48
Filed: 1994-10-04
Abstract: ABSTRACT      A washer fluid system including a reservoir having a discharge for transferring fluid through a transfer hose via at least one discharge nozzle aligned to discharge the fluid onto a windshield of the vehicle.  The device includes a housing having an inlet to receive fluid from the transfer hose at a point downstream from a discharge motor and an outlet to discharge fluid to the transfer hose for discharge by the nozzle.  Fluid is held by a container operably connected to the inlet and the outlet.  A heating element, preferably powered by the vehicle's electrical system, most preferably only when the ignition for the vehicle is in the on position, heats fluid in the container to a temperature which does not exceed a predetermined maximum temperature such as 50°F above ambient temperature.  Insulation is provided for insulating the container in the housing.  The heater device is preferably positioned on the fire wall of the vehicle proximate a pair of discharge nozzles for the windshield of an automobile or the like by a bracket.  Preferably the housing and the container are axially concentric spaced apart cylinders, the inlet and outlet are tubular hoses axially aligned therewith, and the insulation comprises a hollow cylindrical filling the space between the housing cylinder and the container cylinder.